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The average adult has about 21 square feet of skin.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.